Jingtong Optical Technology Co., Ltd-Waterproof hydrophobic hydrophilic anti-fog

Optical hydrophobic coating: an invisible barrier to protect optical devices

What is an optical hydrophobic coating?

An optical hydrophobic coating is a special coating that is usually applied to the surface of optical devices, such as lenses, prisms, filters, etc. Its main function is to protect optical devices from external environmental factors such as moisture, oil, dust, etc., while maintaining the transmittance and clarity of optical devices.

The role of optical hydrophobic coating:

Waterproof and moisture-proof: Prevent water vapor from condensing on the optical surface, causing fog or water droplets to affect the imaging quality.
Anti-fouling and anti-oil: Reduce the adhesion of contaminants such as fingerprints and oil, and facilitate cleaning.
Anti-scratch: Increase the hardness of the optical surface, improve wear resistance, and prevent scratches.
Enhance durability: Extend the service life of optical devices and reduce maintenance costs.

Types and characteristics of optical hydrophobic coatings

According to different materials and preparation processes, optical hydrophobic coatings can be divided into many types, the most common ones are:

Fluorine-based coating materials: have excellent hydrophobic and oleophobic properties, chemical corrosion resistance, and high light transmittance.
Silane coating materials: have strong bonding with the substrate and good wear resistance, and are often used for substrates such as glass and plastic.
Nano coating: prepared by nanotechnology, with super hydrophobic and self-cleaning functions.

Application of optical hydrophobic coatings

Optical hydrophobic coatings are widely used in various optical devices, such as:

Camera lens: protect the lens surface and improve the image quality.
Telescope: prevent the lens from fogging and observe distant objects clearly.
Microscope: protect the objective lens and eyepiece and improve the image resolution.
Glasses: Prevent lenses from fogging and improve wearing comfort.
Touch screen: Increase the durability of the screen and improve the operating experience.

Jingtong Optical Technology - Hydrophobic coatings

Optical Hydrophilic Coating: a tool for maintaining a clear vision

What is an optical hydrophilic coating?

An optical hydrophilic coating is a special coating, usually applied to the surface of optical devices, such as eyeglass lenses, car window glass, display screens, etc. In contrast to hydrophobic coatings (waterproof coatings), hydrophilic coatings have extremely strong hydrophilicity, can quickly absorb water molecules, and form a uniform water film.

The role of optical hydrophilic coating:

Anti-fog effect: When the ambient humidity is high or the temperature difference is large, water vapor is easy to condense into water droplets on the optical surface, affecting the sight. The hydrophilic coating can quickly disperse water molecules into a uniform water film to avoid the formation of water droplets, thereby achieving an anti-fog effect.
Easy to clean: Water droplets are not easy to adhere to the hydrophilic surface, and dust and other stains are also easier to be washed away by water, making it easy to clean.
Glasses: Prevent lenses from fogging, especially suitable for sports glasses, safety glasses, etc.
Car windshield: Prevent rain and fog from affecting driving vision.
Display screen: Keep the screen clear and improve user experience.
Camera lens: Prevent lens fogging and improve image quality.

Principle of optical hydrophilic coating

The hydrophilicity of hydrophilic coating is usually achieved by introducing hydrophilic groups (such as hydroxyl, amino, etc.) on the surface. These hydrophilic groups can form hydrogen bonds with water molecules, thereby enhancing the hydrophilicity of the surface.

Types of optical hydrophilic coating

Depending on the preparation method and materials, hydrophilic coatings can be divided into many types, such as:

Hydrophilic coatingm prepared by sol-gel method: The inorganic network structure formed by hydrolysis and polymerization reaction has good weather resistance and stability.
Plasma treated hydrophilic coating: Use plasma technology to introduce polar groups on the surface of the material to improve hydrophilicity.
Organic polymer hydrophilic membrane: Hydrophilic groups are introduced through copolymerization or grafting, which has high flexibility and processability.

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Optical hydrophobic coating: an invisible barrier to protect optical devices

Jingtong Optical Technology - Hydrophobic coatings

Optical Hydrophilic Coating: a tool for maintaining a clear vision

Jingtong Optical Technology - Hydrophilic coatings